code: def test_bar_with_x_y(self):
      # this is testing plot with specified x and y
      pdf = pd.DataFrame({"lab": ["A", "B", "C"], "val": [10, 30, 20]})
      psdf = ps.from_pandas(pdf)
  
      self.assertEqual(
          pdf.plot(kind="bar", x="lab", y="val"),
          psdf.plot(kind="bar", x="lab", y="val"),
      )
      self.assertEqual(
          pdf.plot.bar(x="lab", y="val"),
          psdf.plot.bar(x="lab", y="val"),
      )
  
imports: import unittest
  import pprint
  import pandas
  import numpy
  from pyspark import pandas
  from pyspark.pandas.config import set_option, reset_option
  from pyspark.testing.pandasutils import have_plotly, plotly_requirement_message, PandasOnSparkTestCase, TestUtils
  from pyspark.pandas.utils import name_like_string
label_desc: Use image node_id 11 for calling the DataFramePlotPlotlyTestsMixin obj's underlying member method code with example usage: obj.test_bar_with_x_y() without return types